Vacuum can



Nov. 1o, 1935. w. M: RYAN ET AL 2,060,444

VACUUM vCAN Filed Feb. 8, 1933 2 sheets sheet .1

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wMuis RYAN BY JOHN WBOLD ATroRNEY- Nov. 1o, 1936. w. M. RYAN ET AL 2,060,444

VACUUM CAN Filed Feb. 8, 1933 2 Sheets-Sheet 2 14* !WLIU'; M| 15 Patented Nov. 10, 1936 William Miles Ryan and John W. Bold,

Brooklyn,

N. Y., assignors to Ryan Coee Corporation, New York, N. Y., a corporation of New York Application February 8, 1933, Serial No. 655,732

8 Claims.

This invention relates to cans provided with interior collars, as common-ly 'usedin Vacuum sealed cans, and has particular reference to improvements in the body and collar structure of such cans and method of making, as will hereafter appear.

Heretofore, cans withk collars have been formed by beading the collar within the can body after the collar and can body have been formed separately. This method of construction results only in a non-rigid and easily removable can collar which is undesirable because it is not air tight and which consequently is unsuitable for packing liquids. When such can collars are loosened and displaced from their position, even solid contents are spilled and sharp can edges are thereafter exposed which endanger users. Furthermore, once the collar is removed it becomes useless because its seat has been lost. r, j Our invention relates to a new method of constructing cans with collars which will permit the collar to remain entirelyrigid and which furnishes an air and liquid tight receptacle even after the outside seal on the can is broken and the cover removed.

In the accompanying drawings,

Fig. i is an elevation of a can embodying the invention partly in section;

Fig. 2 is a section on the line 2-.2 of Fig.' 1;

Fig. 3 is a section on the line 3 3 of Fig. l;

Fig. 4 is a section on the line d-l of Fig. 1;

Fig. 5 is a view similar to Fig. 1 with the top removed and showing a slight modification;

Fig. 5 is a perspective view showing the process of opening the' finished can;

Fig. 7 is a detail view of the collar as showing in the can after being opened;

Fig. e is a plan View showing the. combined collar and top blank provided with the opening 49 scores and ready to be :folded: f

Fig. 9 is a plan view partly in section, showing the collar and top blank partly folded;

Fig. 10 is a. similar view showing it further folded;

Fig. 11 is a plan view of the bottom body blank;

Fig. 12 shows the bottom body blank partly folded;

Fig. 13 shows the top body and collar and bottom body seamed together in the flap ready for joiningl and soldering; and y Figs. ,14 and l5 are details showing the body ends.

Referring to the drawings, in Figs. 1, 11 and 12, I is the lower body blank'fnotched out at the corners as shown and which is.rolled over on the top edge as at 3 and the end edges as at 5, 6 for lock seeming to each other when the collar has been attached. v

Referring to Figs. 1, 8, 9 and 10, il is the combined body top and collar blank whose lower crimped edge Si is to become the top edge of the collar-when folded over along intermediate-folding line iii which forms the edge i i' shown in Figs. 9 and 10, Fig. 10 showing the edge il curled over to receive andbe lock-seamed with curved edge 3 of body section i, as lin Fig. 12. Blank d is also scored for tearing in the usual manner by scores i3, and providing the tearing tongue id.

After the foregoing operations are completed, the two parts are lock-seamed together preferably toA form the interior bead or seam i5 which leaves the outer surface smooth to eiectively receive a paper label, which is an advantage over the usual type of vacuum sealed can where the collar is rolled into the body and provides an objectionable exterior bead which precludes satisfactory application of a paper label, thereby requiring more expensive lithographing of the outvside. If, however, it is desired to have the circumferentialy seam l5 outside, it is simply necessary to make the bends il and 3 the other way, or any other suitable rearrangement .can be made to provide an external bead or seam i5. This construction as thus far described has a marked advantage over the ordinary construction above described in that this invention provides a circumferential seam of much increased stiffness as compared with the prior construction, and thereby the can of this invention will have greater resistance to deformation or fracture.

After producing the assembled at as shown in Fig. 13, the flat is bent up and joined as shown in Fig. le in the usual manner of making side seams by locking and soldering as at i6 in Fig. 4, it being observed that the blanks are so lcut as t-o cause the ends'of seamV i5 to butt as seen in Fig. 3. A simple overlap and soldering is suiiicient for the collar as shown at l1 in Figs. 2 and 7.

Thisprovides a cylindrical can body which is ready for iianging and attaching the top and bottom heads in the usual manner. The crimped collar edge 9 gives a suiilciently reduced or tapering collar as to facilitate removal of the cover.

In Fig. 5 a. slight modication is shown wherein the top body section I8 is made separate from the collar I9, but are equally tight when joined together and seamed and soldered as shown.

By this can structure, a great advantage over present cans with collars is gained by reason of the fact that the can collar is rigidly attached to the can body, and will hold liquids as well as solids whereas, present can collars are not air tight after the Acan is opened, andare all too easily removed, causing losses of contents and exposure of sharp edges which endanger users. This can will tightly hold liquids as wellas solids up to the top of the collar even after the outer seal is broken and the cover has been removed; the collar being always rigidly and permanently attached to the body. A further advantage is that the circumferential seam strengthens the can against crushing, or if crushed,l will not loosen the collar as has heretofore happened.

The invention claimed is:

1. A sheet metal container comprising a lower cylindrical wall, a double collar joined at its lower end to said wall in a lock seam, the vertical edges of said wall and of the outer collar being joined in a continuous lock seam outside of said seam joining said double collar to said wall.

2. A sheet metal container comprising a lower cylindrical wall, a double collar joined at its lower end to said wall in a lock seam,. the vertical edges of said wall and the outer collar being joined in a continuous lock seam outside of said seam joining said double collar to said wall and the vertical edges of said inner collar-overlapping and being soldered together.

3. Asheet metal container comprising a lower cylindrical wall, a double collar joined at its lower end to said wall in a. lock seam, the vertical edges of said wall and the outer collar being joined in a continuous lock seam outside of said seam joining said double collar to said wall and the vertical edges of said inner collar overlapping and being soldered together and a cover sealed to the upper edge of said outer collar` in a lock seam.

4. A sheet metal container comprising a lower cylindrical wall, a double collar joined at its lower end to said wall in a lock seam, the vertical edges of said wall and the outer collar being joined in a continuous lock seam outside of said seam joining said double collar to said wall and the vertical edges of said inner collar overlapping and being soldered together and a scoring and a tearing tongue in said outer collar lbelow the upperv edge of said inner collar.

5. A sheet metal container comprising a lower cylindrical wall and a double collar joined at its lower end to said wall in a lock seam; the vertical edges of said wall and of the outer collar being joined in a continuous lock seam.

6. A metal can comprising a lower body section and an upper double collar, said double collar comprising an inner wall and an outer wall secured to the top edge of the lower body section in a joint seam, said outer wall having a tearing tongue and a scoring, said lower body section and said outer Wall being closed on a vertical seam at right angles to said joint seam.

'7. A metal can comprising a lower body section and an upper double collar, said upper double collar comprisingv a sheet of metal folded double to form an inner walland an outer wall, said double collar being joined at its fold with the upper edge of said lower section in a joint seam, a tearing tongue and scoring on said outer wall, said inner wall extending above the scoring on the outer wall, and said outer wall and said lower section being closed on a seam at right angles to said joint seam.

8. A metal can comprising a lower body section and an upper double collar, said double co1- lar comprising an inner wall and an outer Wall secured to the top edge of the lower body section in a joint seam, said outer wall having a tearing tongue and a scoring, said lower body section and said outer wall being closed on a vertical seam at right angles to said joint seam, and a cover sealed to the top edge of said outer wall.

W. MILES RYAN. JOHN W. BOLD. 

